Improved screw-collar for cqsfwectnfo- covers to glass vessels



J onu-c con; oF'f N Efw Y o RK; N.'

Letters-11am: Nq. s7',14sdaed,1rebmyrg 23, 1869.

' mprzovnn 'SCREW-connu ron .conn-norm@ covnns 'ro amissressens.v

.The Schedule referred to in these Letters iatent and making part of the same.

To all whom it ma/y concern:

B e it known that I, J 011B 000K, of the city of New York, county and State of New York, have invented a new and useful Device fonan Air-Tight Spring-Joint.

The object of my invention is to connect, without the use' of cement or solder, two vessels, or a vessel audits cover, and make the joint secure against leakage.

' The advantage of my joint is, that it isv peculiarly;v adaptable for connecting glass or any fragile lmaterial i with metal, and to permit the frequent opening and; closing of the joint,l without imllairing itsusefuluess,

, In order to show clearly the nature of my invention# and to' enable those skilled in4 the arts to make and useit, l will proceed to describe its formation and use, rel-` s erence being had tothe drawings that accompany thisV llange on the neck of a vessel, vbut these collars have #been placed on, either in sections, or bybeing bent ,specific-ation, and making a part thereof. y

At the margin ,or mouth-piece of a bottle,'jar, orl

"otl'lier vessel, or on anyssutable part thereof, a rirnlorlprojecting ring is placed," under which, at two. points,

:there are two small shoulders, all properly shapedf when the vessel is originally moulded or blown. :A band tapering at the top, is made, the lower part sufficiently large to pass over the projecting'rin g and shoulf ders', the upper tapered part being of a smallerci'rcumference, but with several openings and slits around lit, to permit it to open at various points, and thus pass over the projections and immediately lspring back,close again,

.and tightly come-together under the ring. -Around the outside of the band, on required portions, a thread' is out, and certaiiropenings are made for theshoulders tov project through. j

vThe second part of the. joint fits 'over the above described baud, and has athread cut in the inside, the whole tapering slightly at the top.

It will thus be apparent, that when these two parts are screwed together, 'the upper, and smaller portion of the band'will be pressed upward and iuwar and againsathe projecting ring, olasping closely and i'rinly the parts. under it, the two? projecting shoulders-preventing the band from turning round. The openings'in the upper part of the band permit it to adjust itself to the size required to make the connection secure.'

and' tight.

*i 'pass over the rim A in g.1.

invention. n

Figure 1 represents a glass oil-cup. A is the `plvol -jecting-lring.; `B, lthe projecting shoulder.

Figure 2 represents the band C is the tapering top; DfD, the openings, enablingit to separateand y Figure Srepresents a cupA as in iig. 1, with the band, lasin iig. 2, slipped on. v Figure 4 represents a sectional view of the cover. E 'is'th'e tapering' top, V gg f Figure 5 represents a sectional View of cup with band 'and cap on. Y

j I am aware that fastenings have been made heretofore, by screwing metallic collars upand against the g z I am not aware of any band," or collar, having been ymade as minezis, of a graduated or tapering shape, with 'certain springs placed around it,V so as to enable it to,-

My collar is especially designed fdr use on the cutside, being .made with a viewfto iit andgrasp the cx;

terior only, by which I'maint'aiu a firmer and closer liold than could be secured inside, and vwith far less liability to break a, fragile vessel.

Having now fully described my invention, l

, What I claim as new and useful, and -desire to secure by Letters'Patena'is- A tapering collar for the vneck of a'vessel, withpope'ningsv D D, arranged so as to vseparate when passing Vover a projecting flange or shoulder, and then spring back again, substantially as described, and for the purpose intended. c.

Witnesses: A J Olil'l.' r00.0K.

'.lnonks ALLIson, i

M. Il. NATHAN 

